Mozilla Connect

I use Firefox 98.0 on a Windows 10 laptop.I enjoy the print preview on Internet Explorer 11. I can easily see the flow from page to page. After [alt]F, V I can select[alt]w for full width of screen, [alt]1 for one page, [alt]2 for two pages, [alt]3 f...

In Internet Explorer 11 I can easily edit a local html document by using[alt]P (for Page),d (for Edit with Notepad).I use this every day. Something similar would be very helpful.(I use Firefox 98.0 on a Windows 10 laptop.)